Adding a mean insula SEEG signal to a behavior model increased mean confidence prediction error across trial blocks in 12 patients
We tested whether a mean insula SEEG high-gamma signal improves confidence prediction beyond recorded behavior. The fixed signal used the first 0.4 seconds after movement onset. We used MetaRDK release 1.0.3 and anatomy labels, with no contact selection from confidence effects. Five consecutive trial blocks were tested within each patient. Mean patient relative squared error increased by 1.81% in 12 patients and 2,462 trials. Three patients improved. The 95% patient bootstrap interval for the error increase was 0.16% through 3.62%. The exact two-sided sign-flip reference p value was 0.0752. The interval excluded zero. The reference p value was above 0.05. This result applies to the fixed region mean and behavior model. It does not establish that the insula has no confidence information. Fresh source checks matched all 2,462 signal windows. The package preserves code, source tables, object versions, features, predictions, figures, and source checks.
insula · confidence prediction · stereoelectroencephalography · high-gamma activity · cross-validation · trial blocks
References
4- usesA fixed SEEG high-gamma model increased mean confidence prediction error across trial blocks in 17 patients sci:sha256:a82d0f18d33d80eff73f5cfc9ea22ee95b2d84706a1fa4fa872c7af43045c180
We reused its compact channel features, source tables, pinned range maps, patient flow, and model functions. These files supplied signal windows, provenance, behavior terms, trial splits, and group summaries for the new anatomy-defined test.
- usesdoi:10.18112/openneuro.ds006253.v1.0.3
Source processed SEEG high-gamma signals, behavior tables, and anatomy for this analysis.
- supportsdoi:10.1038/s41467-025-61744-8
The source study reports confidence associations in insula and premotor regions and different time courses around movement onset, as summarized in the publication.
- supportsdoi:10.1101/2024.03.23.586414
Table S1 supplies the PMdl and PMdm mapping used for the fixed premotor check.
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1 publicationPublic catalog entries on Sciscape.
- A fixed insular SEEG model lost its mean confidence prediction advantage when the penalty for all channels increased from 1 to 10 in 12 patients
[Legacy relation: reproduces] Our independently coded primary model reproduces all 2,462 primary predictions and all 12 patient MSE and gain scores exactly. We found this report after our scores and source audit. The recordings and upstream features are shared, so this is a computation check with no new patient evidence. Bootstrap seeds differ.